期刊
MATERIALS ADVANCES
卷 3, 期 2, 页码 1280-1285出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1ma00972a
关键词
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资金
- JSPS KAKENHI [21K14603, 21H02016]
- Grants-in-Aid for Scientific Research [21K14603, 21H02016] Funding Source: KAKEN
In this study, nanoparticles composed of a photochromic diarylbenzene were prepared using both ball-milling and reprecipitation methods, showing different crystalline states and reversible T-type photochromic behavior. The research provides a convenient and useful way to prepare nanoparticles with different thermal back reactivity from one molecule.
The use of photochromic molecules as active elements in aggregates is very important for developing advanced materials in the next generation. The nanoparticle is one of the aggregate forms and has been attracting much attention due to not only the ease of preparation but also the characteristic photoswitching properties. In this work, we fabricated nanoparticles composed of a photochromic diarylbenzene by both ball-milling and reprecipitation methods and investigated their photochromic behaviors. The nanoparticles made by the ball-milling method had crystallinity, while those made by the reprecipitation method were amorphous. Both nanoparticles exhibited reversible T-type photochromic behavior, but the kinetics of the thermal back reaction depended on the state of the nanoparticles. The results in this study provide a convenient and useful way to prepare nanoparticles with different thermal back reactivity from one molecule.
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